Yes Japan, South Korea, China and North Korea have taken part in the world cup.
If you are referring to the FIFA World Cup it's 32.
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No Asian country has won the world cup so far.
There are well over 180 countries in F.i.F.A.
They have qualified for the World Cup Finals on 18 occasions.
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Manchester United can not participate in the Fifa world Cup. It is a national team competition. It is not a club team competition.
One place was allocated to Africa for the 1934 World Cup. Egypt qualified to play in the tournament.
Spain have taken part in the finals of 12 FIFA World Cups.See related link.
There were North Korea, South Korea, Japan and you can count Australia.
I believe it was 11 countries...
Yes, Japan won the Fifa Womens World Cup 2011